/Engine/Source/Runtime/MovieScene/Public/Evaluation/MovieSceneEvaluationField.h
Efficiently find the entry that exists at the specified time, if any
The index within Ranges, Groups and MetaData that the current time resides, or INDEX_NONE if there is nothing to do at the requested time
int32 GetSegmentFromTime ( [FFrameNumber](API\Runtime\Core\Misc\FFrameNumber) Time ) const